Method for controlling a glazing unit having electrically controllable optical properties

A method for the electrical control of at least one functional element embedded in a glazing unit and having electrically controllable optical properties, wherein

• the glazing unit comprises a composite pane having an outer pane and an inner pane which are connected to one another via a thermoplastic intermediate layer,
• the functional element is arranged between the outer pane and the inner pane and has an active layer having electrically controllable optical properties between a first planar electrode and a second planar electrode,
• the optical properties are controlled by means of a control unit, wherein the control unit is connected to at least two transparent planar electrodes of the functional element,
• an electrical voltage is applied between the at least two transparent planar electrodes by means of the control unit,
• the method comprising:
• determining, using an inverse function, a magnitude of the electrical voltage, wherein the inverse function is used as a temperature-dependent linearization function to obtain a linear behavior of one or more of the controllable optical properties of the at least one functional element,
• detecting a temperature of the functional element or of the composite pane by means of a temperature sensor, and
• transmitting the temperature of the functional element or of the composite pane to the control unit,
• wherein the magnitude of the electrical voltage between the at least two transparent planar electrodes is ascertained and applied by means of the control unit as a function of the temperature of the functional element or of the composite pane.